Here’s my take on it using a custom AI component for a stopwatch, which also includes a countdown timer. There should be only three columns in the table (RowID, JSON, and one experimental to extract duration from the json). The template app seems to be holding on to old columns and I can’t get them to remove when I publish. They aren’t in my copy, but they still exist in the template. Ignore the old unused columns because they were for a previous version of this I did a while back.
At this point making any use of the data would require extracting data out of the JSON object. Both the Stopwatch and Countdown timer could also be controlled outside of the component by manipulating the appropriate JSON.